While our favorite photo sharing platform is great for brunch pics, Instagram is not so welcoming of nipples. Notoriously, Instagram kicks off users who post images of breastfeeding or mastectomies. Willis was no exception: Her topless stroll around New York's East Village (which, she points out, is legal in NYC) got her booted off the platform. However, this very public dismissal only gave the Free The Nipple campaign more exposure among the Hollywood crowd.

While Michelle Rodriguez is one of the newest members of the Free The Nipple celebrity club, she's already proven to be quite the supporter. She has been seen donning multiple styles of the campaign's signature T-shirts. You can purchase the T-shirts on the Free The Nipple website, and join the thousands of other activists fighting for nipple freedom long before Willis' now infamous walk through NYC.

See how celebrities have shown support for Free The Nipple. (Some images NSFW.)

Michelle Rodriguez

Rodriguez, seen coming back from vacation, rocks one of her many Free The Nipple T-shirts.

The official Free The Nipple campaign posted this picture of Rodriguez back in April, lounging (or possibly doing pull-ups?) in a different style shirt.

Miley Cyrus

Cyrus was an early supporter of the campaign: She shared this tweet back in December.

Cara Delevigne

Michelle Rodriguez' ex is also part of Free The Nipple. The model counts a nipple top among her impressive T-shirt collection, and posted this image on Instagram from a shoot in Bali.

Suki Waterhouse

Delevingne's friend (and Bradley Cooper's girlfriend) showed support for the campaign by reposting this image from TaTa Top, the so-called "breast bikini top ever." The design maneuvers around Instagram's community guidelines by putting the nipples on your clothing, so you're not technically topless. Cheeky. Waterhouse's straightforward caption, "Free the nipple," leaves little question about where she stands on the issue.

Olivia Wilde

Wilde caused quite the commotion when she was photographed breastfeeding her son, Otis, as part of her Glamour cover shoot. While not explicitly in support of the Free the Nipple movement, this represents a bold move in destigmatizing public breastfeeding — and, thus, public breast exposure.